Device for facilitating driving hollow piles or pipes.



PATENTED. MAY 30, 1905.

. W. T. MOGLINTOGK.

DEVICE FOR FACILITATING DRIVING HGLLOW PILES 0R PIPES.

APPLICATION FILED SEPT. 22, 1904.

STATES Patented May 30, 1905.

PATENT OFFICE.

WILLIAM TOBIAS MOGLINTOCK, OF SEWVIGKLEY, PENNSYLVANIA,

ASSIGNOR OF ONE-HALF TO A. A. (JOHILL, OF MCKEESPORT,

PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 790,910, dated May 30,1905. Application filed September 22, 1904. Serial No. 225,608.

To all whmn it may concern:

Be it known that I, WILLIAM ToBIAs Mo- CLm'rooK, a citizen of the UnitedStates, residing at Sewickley, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inDevices to Facilitate Driving Hollow Piles or Pipes; and I do declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to devices for facilitating the process ofdriving hollow piles or pipes into the ground; and the principal objectof the invention is to provide a removable core and driving-head for ahollow pile or pipe which is designed to be driven with the hollow pileor pipe into the ground, said core and head being removable therefromafter driving and leaving the pile or pipe in the ground.

Another object is to provide a device for facilitating the process ofdriving metal pipes or concrete piles, comprising a driving-point, adriving-head, and an intermediate connection, said parts forming a corefor the pipe to be driven and removable therefrom after the pipe hasbeen driven.

These and other objects are attained by means of the constructionillustrated in the accompanying drawings, in which Figure 1 is a sideelevation of the pipe to be driven and the removable core in placewithin said pipe. Fig. 2 is a central vertical section of the same. Fig.3 is asimilar view of the hollow pile or pipe. Fig. 4 is a like view ofthe removable core.

1, the lower edge of said pipe resting upon the shoulder 4, said ringbeing beveled at its 5 upper and lower edges, as at 5.

It will be understood, of course, that pipes I of less diameter or pipesof sufficient thickness not requiring the strengthening band and ringmay be readily driven by means of my invention.

The core designed to fit within the pipe to be driven com prises a solidsteel point-section 6, having a conical lower end 7, a plain cylindricalbody portion 8, and an inwardly-beveled upper end 9.

A socket or recess 10 is formed in the upper end of the point-section,and a tube or pipe 11 is attached by a threaded connection at its lowerend within the socket 10. The upper end of the pipe 11 is seated in athreaded socket 12, formed in the lower end of the driving-head 13, saiddriving-head having a plain body portion 14, and an enlarged head 15, ashoulder 16 being formed on said head between the body portion 14 andthe head portion 15.

To drive a pipe with my improved device, the core is placed within thepipe to be driven, the shoulder 16 resting upon the upper edge of thepipe 1 to be driven. The point 7 is started in the ground and apile-driver or other means may be employed for driving the device intothe ground. When the pipe has been driven as far as desired, the core islifted out of the pipe 1, leaving agood clean casing or pipe in theground.

My device is comparatively simple in construction and has been foundreliable and efficient in operation, while the cost of production isslight, owing to the fact that the core may be used many times withoutinjury.

Various changes in the shape, proportions, and minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A device to facilitate the process of driving hollow piles or pipes,comprising a core having a solid conical point-section, a pipe connectedthereto, a driving-head connected to said pipe and provided with ashoulder, and a hollow pile or pipe surrounding the core substantiallyas described.

2. A device of the character described,com- 7 prising a solidpoint-section having a threaded socket in its upper end, a pipe securedin said socket, a solid driving-head secured to the upper end of saidpipe, a shoulder formed on the head, and a hollow pipe or pilesubstantially as described.

